[Ignore] Ion-content fullscreen="false" doesn't work

I’m with beta.10. My code

<ion-header>
 <ion-navbar>
  <buttons>...</buttons>
 </ion-navbar>
</ion-header>

<ion-content fullscreen="false">
 <h3>My title></h3>
</ion-content>

the <h3> element is still covered by the navbar

Ignore the question plz. was my bad.